Why INP Replaced FID as a Core Web Vital in 2025
Introduction Over the past few years, Google’s Core Web Vitals have redefined what makes a website “fast” in the eyes of both users and search engines. Initially, metrics such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS) dominated the optimization landscape. However, 2025 brought a major shift: Interaction to […]

